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- Crosby 'A1342N' & 'A1345N' Master Link and Master Link Assemblies, WLL Range from 3120kg to 31 tonnes
We offer here our range of Crosby A1345N Master Link Assemblies. Other wise better known in the UK as a Quad Assembly, they are made from alloy Steel and are quenched and Tempered. Each Individually A1342N quad assembly is proof tested and supplied certified.
A-1342N Master Link
- Alloy Steel - Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- All sizes are forged unless otherwise specified.
- “Look for the Platinum Color - Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
A-1342N Size | A-1342N Designation Marking | A-1342N Stock No. | Working Load Limit (t) | Proof Load (t) | Weight Each (kg) | Dimensions (mm) | |||
(in.) | (mm) | A | B | C | |||||
1/4 | 6-7 | X1 | 1011403 | 3.12 | 7.8 | .49 | 15.2 | 63.5 | 127 |
5/16 | 8 | X2 | 1011412 | 4.16 | 10.4 | .77 | 17.8 | 69.9 | 140 |
3/8 | 10 | X3 | 1011421 | 6.40 | 16.0 | 1.22 | 21.3 | 76.2 | 152 |
1/2 | 13 | X4 | 1011430 | 10.92 | 27.3 | 2.81 | 27.7 | 102 | 203 |
5/8 | 16 | X5 | 1011449 | 16.40 | 41.0 | 4.80 | 34.0 | 127 | 229 |
3/4 | 19 | X6 | 1011458 | 25.7 | 64.2 | 8.52 | 41.4 | 133 | 267 |
7/8 | 22 | X7 | 1011467 | 31.0 | 77.6 | 13.1 | 47.8 | 152 | 305 |

A-1345N Master Link Assembly
- Alloy Steel - Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- “Look for the Platinum Color - Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
A-1345N Designation Marking | A-1345N Stock No. | Grade 100 Chain Size | Working Load Limit (t)* | Proof Load (t) | Weight Each (kg) | Dimensions (mm) | |||||||
(in.) | (mm) | A | B | C | D | E | F | G | |||||
X 2 | 1011501 | - | 6 | 3.48 | 8.7 | 1.31 | 17.8 | 69.9 | 140 | 12.7 | 38.6 | 85.1 | 6.10 |
X 3 | 1011510 | 1/4 - 5/16 | 7 - 8 | 6.20 | 15.5 | 1.99 | 21.3 | 76.2 | 152 | 14.3 | 45.0 | 85.1 | 7.62 |
X 4 | 1011529 | 3/8 | 10 | 9.58 | 24.0 | 4.35 | 27.7 | 102 | 203 | 19.1 | 59.9 | 100 | 8.38 |
X 5 | 1011538 | 1/2 | 13 | 16.33 | 40.9 | 8.75 | 34.0 | 127 | 229 | 25.4 | 89.9 | 160 | 12.9 |
X 6 | 1011547 | 5/8 | 16 | 24.60 | 61.5 | 14.2 | 38.1 | 133 | 267 | 31.8 | 100 | 180 | 16.5 |
X 7 | 1011556 | 3/4 | 19 | 38.44 | 96.1 | 24.6 | 47.8 | 152 | 305 | 38.1 | 108 | 203 | 20.6 |
X 8 | 1011565 | 7/8 | 22 | 46.50 | 116.2 | 50.9 | 57.2 | 203 | 406 | 47.8 | 152 | 305 | 22.4 |

We offer here our range of Crosby A1345N Master Link Assemblies. Other wise better known in the UK as a Quad Assembly, they are made from alloy Steel and are quenched and Tempered. Each Individually A1342N quad assembly is proof tested and supplied certified.
A-1342N Master Link
- Alloy Steel - Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- All sizes are forged unless otherwise specified.
- “Look for the Platinum Color - Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
A-1342N Size | A-1342N Designation Marking | A-1342N Stock No. | Working Load Limit (t) | Proof Load (t) | Weight Each (kg) | Dimensions (mm) | |||
(in.) | (mm) | A | B | C | |||||
1/4 | 6-7 | X1 | 1011403 | 3.12 | 7.8 | .49 | 15.2 | 63.5 | 127 |
5/16 | 8 | X2 | 1011412 | 4.16 | 10.4 | .77 | 17.8 | 69.9 | 140 |
3/8 | 10 | X3 | 1011421 | 6.40 | 16.0 | 1.22 | 21.3 | 76.2 | 152 |
1/2 | 13 | X4 | 1011430 | 10.92 | 27.3 | 2.81 | 27.7 | 102 | 203 |
5/8 | 16 | X5 | 1011449 | 16.40 | 41.0 | 4.80 | 34.0 | 127 | 229 |
3/4 | 19 | X6 | 1011458 | 25.7 | 64.2 | 8.52 | 41.4 | 133 | 267 |
7/8 | 22 | X7 | 1011467 | 31.0 | 77.6 | 13.1 | 47.8 | 152 | 305 |

A-1345N Master Link Assembly
- Alloy Steel - Quenched and Tempered.
- Individually proof tested to values shown with certification.
- Proof tested with fixture sized to prevent localized point loading per ASTM A952.
- Proof test certification shipped with each link.
- “Look for the Platinum Color - Crosby Grade 100 Alloy Products.”
- Engineered Flat for use with S-1325A coupler link.
A-1345N Designation Marking | A-1345N Stock No. | Grade 100 Chain Size | Working Load Limit (t)* | Proof Load (t) | Weight Each (kg) | Dimensions (mm) | |||||||
(in.) | (mm) | A | B | C | D | E | F | G | |||||
X 2 | 1011501 | - | 6 | 3.48 | 8.7 | 1.31 | 17.8 | 69.9 | 140 | 12.7 | 38.6 | 85.1 | 6.10 |
X 3 | 1011510 | 1/4 - 5/16 | 7 - 8 | 6.20 | 15.5 | 1.99 | 21.3 | 76.2 | 152 | 14.3 | 45.0 | 85.1 | 7.62 |
X 4 | 1011529 | 3/8 | 10 | 9.58 | 24.0 | 4.35 | 27.7 | 102 | 203 | 19.1 | 59.9 | 100 | 8.38 |
X 5 | 1011538 | 1/2 | 13 | 16.33 | 40.9 | 8.75 | 34.0 | 127 | 229 | 25.4 | 89.9 | 160 | 12.9 |
X 6 | 1011547 | 5/8 | 16 | 24.60 | 61.5 | 14.2 | 38.1 | 133 | 267 | 31.8 | 100 | 180 | 16.5 |
X 7 | 1011556 | 3/4 | 19 | 38.44 | 96.1 | 24.6 | 47.8 | 152 | 305 | 38.1 | 108 | 203 | 20.6 |
X 8 | 1011565 | 7/8 | 22 | 46.50 | 116.2 | 50.9 | 57.2 | 203 | 406 | 47.8 | 152 | 305 | 22.4 |

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